1. Pick up your phone and press *69. You will hear a message that provides the number of the last caller.*
2. To automatically call that number, press 1.
3. If the number is busy, a message will offer to monitor the line for 30 minutes, and alert you, with a special ring, when the line is free. Then, simply pick up the phone to automatically dial the number.
*$0.95/call with $4.75 monthly cap